Symptom. When you're away from home and send an email message using your home email account, your email message might be returned with a 550, 553, or relay-prohibited error message. The same situation could occur when you're away from your office and try to send an email message using your work email account.

了解如何在 Windows 中使用鍵盤快速鍵「Windows 標誌鍵 + P」、「連線」應用程式 (適用於 Windows 10) 或無線顯示器 (適用於 Windows 11) 連線至投影機或其他電腦。.